407398 ÷ 17 
We want to divide 407398 by 17.

Step 1:
17 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 17

Advancing to step 2:
If we divide 40 by 17, we get 2 and a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 34 away from 40, we end up with 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 17

Advancing to step 3:
When dividing 67 by 17, we get 3 with a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
The remainder is 16 after subtracting 51 from 67.
Bring next digit (3) of the dividend behind the 16 and repeat the process: 163 / 17

Going ahead to step 4:
17 can be fit into 163 9 times, resulting in a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 239.0
If we subtract 153 from 163, we get 10.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 17

Going ahead to step 5:
109 divided by 17 is 6 with a remainder of 7.
Write down 6 as next digit of the result. 
Result so far: 2396.0
Subtracting 102 from 109 leaves us with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 17

Step 6:
When dividing 78 by 17, we get 4 with a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 23964.0
The remainder is 10 after subtracting 68 from 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
17 can be fit into 100 5 times, resulting in a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 23964.5
Subtract 85 from 100 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 8:
The number 17 fits into 150 8 times, leaving a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 23964.58
Deduct 136 from 150 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 9:
17 can be fit into 140 8 times, resulting in a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 23964.588
If we subtract 136 from 140, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 23964.588 and a remainder of 0.0004.